package com.example.interceptor;

import com.example.common.ErrorCode;
import com.example.constant.BaseConstant;
import com.example.exception.BusinessException;
import com.example.model.po.User;

import lombok.extern.slf4j.Slf4j;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.method.HandlerMethod;
import org.springframework.web.servlet.HandlerInterceptor;


import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * jwt令牌校验的拦截器
 */
@Component
@Slf4j
public class SessionUserInterceptor implements HandlerInterceptor {

    //@Autowired
    //private JwtProperties jwtProperties;
    /**
     *
     * 用户登录态键
     *
     */
    private static final String USER_LOGIN_STATE = "userLoginState";

    /**
     * 校验jwt
     *
     * @param request
     * @param response
     * @param handler
     * @return
     * @throws Exception
     */
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //判断当前拦截到的是Controller的方法还是其他资源

        log.info("进入拦截~");
        //HttpServletResponse httpResponse = (HttpServletResponse) response;
        //response.addHeader("Access-Control-Allow-Credentials", "true");
        return true;
        //if (!(handler instanceof HandlerMethod)) {
        //    //当前拦截到的不是动态方法，直接放行
        //    return true;
        //}
        //
        ////1、从请求头中获取令牌
        //HttpSession session = request.getSession();
        //User user = (User)session.getAttribute(USER_LOGIN_STATE);
        //
        ////2、校验令牌
        //try {
        //    log.info("登录状态校验:{}", user);
        //
        //    log.info("当前用户的id：{}", user.getId());
        //    BaseConstant.setCurrentId(user.getId());
        //    //3、通过，放行
        //    return true;
        //} catch (Exception ex) {
        //    //4、不通过，响应401状态码
        //    //response.setStatus(401);
        //    throw new BusinessException(ErrorCode.NOT_LOGIN, "没有登录");
        //    return false;
        //}
    }
}
